package testy;

import java.io.File;
import java.io.IOException;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


public class ClassPathHacker {
	
	private static final Logger log = LoggerFactory
			.getLogger(ClassPathHacker.class);
 
private static final Class[] parameters = new Class[]{URL.class};
 
public static void addFile(String s) throws IOException {
	File f = new File(s);
	addFile(f);
}//end method
 
public static void addFile(File f) throws IOException {
	addURL(f.toURI().toURL());
}//end method
 
 
public static void addURL(URL u) throws IOException {
		
	URLClassLoader sysloader = (URLClassLoader)ClassLoader.getSystemClassLoader();
	Class sysclass = URLClassLoader.class;
 
	try {
		Method method = sysclass.getDeclaredMethod("addURL",parameters);
		method.setAccessible(true);
		method.invoke(sysloader,new Object[]{ u });
	} catch (Throwable t) {
		log.error("", t);
		throw new IOException("Error, could not add URL to system classloader");
	}//end try catch
		
}//end method
 
}//end class